Hydraulic blending machine



1942- R. c. HOPKINS 2,270,946v

HY DRAULIC BLENDING MACHINE Filed Feb. 9, 1940 Patented Jan. 27, 1942 UNITED STATES PATENT OFFICE 2,270,946 HYDRAULIC BLENDING MACHINE Robert C. Hopkins, Alliance, Ohio Application February 9, 1940, Serial No. 318,085

3 Claims.

The invention relates to machines for blending oil, gasoline and other liquids and viscous materials which may be mixed and blended,'and more particularly to a hydraulic blending machine comprising a rotary attrition mill and ahydraulic impulse turbine or wheel directly connected thereto, so that the liquid to be blended may be admitted under pressure to the machine to rotate the turbine and drive the mill, whereby the liquid is given a preliminary mixing as it passes through the turbine and is further mixed and blended as it is passed through the mill.

The machine may include a rotary cutting, mixing and attrition mill of the general type shown in my prior Patents No. 1,764,020 dated July 17, 1930; No. 1,775,721 dated September 16, 1930; No. 1,796,104 dated March 10, 1931; No. 1,873,409 dated August 23, 1932; or No. 2,111,364 dated March 15, 1938, comprising generally, a rotary cutting, mixing and attrition member as sociated with a plurality of attrition chambers, an impulse turbine or wheel being fixed upon the shaft of said rotary member located within a housing communicating axially with the attrition mill An object of the invention is to provide a housing totally enclosing all of the operating mechanism of the blending machine with all bearings entirely enclosed so as to prevent any leakage of the liquids passing through the machine, whereby explosive liquids such as benzine, gasoline and the like may be safely processed in the machine.

Another object is to provide a hydraulic blending machine comprising a self-contained attrition mill and directly connected turbine for driving the mill by pressure of the liquid being blended.

A still further object is the provision of a combined turbine and attrition mill through which the liquid is passed in order, whereby the liquid.

is given a preliminary mixing in the turbine and is then further mixed and blended in the mill.

A further object is to provide a blending machine in which the speed of the mill is controlled by the pressure of the infiowing liquid.

The above objects together with others which will be apparent from the drawing and following description, or which may be later referred to, may be attained by constructing the improved hydraulic blending machine in the manner illustrated in the accompanying drawing in which Figure 1 is a longitudinal sectional view through a hydraulic blen g machine constructed in accordance with the invention;

Fig. 2, a transverse section through the turbine, taken as on the line 22, Figure 1; and

Fig. 3, a transverse section through the mill,

taken as on the line 3,

Similar numerals refer to similar parts throughout the several views.

The mill is enclosed within a housing generally indicated at l0, preferably of cylindrlc shape and located in horizontal position.

A cap or head I I is connected to one end of the housing III as by bolts l2 and is provided with an entirely enclosed bearing portion H within which is located a bearing or bushing of any well-known type as shown at I4, within which the journal portion l5 of the adjacent end of the shaft It may be journaled.

The other end of the housing I0 is closed by the head or cap I! connected to the housing II as by bolts I8 and so shaped as to form a housing for the turbine which will be later described.

A hearing portion I9 is formed in the head l1 and the journal portion 20 of the shaft I3 is journaled therein.

A rotary cutting unit is carried upon the shaft l6 which may be in the form of a plurality of disk saws. For this purpose a hub 2| may be fixed upon the shaft l6 as by the key 22.

A collar 23 is formed or fixed .upon the shaft l6 adjacent to the journal 20 to engage the adjacent end of the hub 2| in order to position the same relative to the shaft.

Anannular flange 24 is formed upon the adjacent end of the hub.

A plurality of disk saws 25 is mounted upon the hub 2| and extends from theflange 24 to a point near the other end of the hub, at which point a ring flange 26 may be located around the hub and clamped against the adjacent end of the gang of disk saws as by a nut 21 threaded upon the adjacent end portion of the hub, thus clamping the gang of saws tightly between the flange 24 and the ring flange 26.

A jam nut 28 may be located upon the threaded portion 29 of the shaft, a washer 30 being interposed between said jam nut and the nut 27 upon the hub, for locking the nut 21 in adjusted position.

A washer 3| may be located around the journal portion l5 of the shaft between the cap II and the nut 28 for taking the end-thrust of the shaft in this direction.

A plurality of attrition formed within the housing III by means of longitudinal partition walls 33 and transverse partitlon alls 34 extending inward from the housing chambers 32 may be to a point closely adjacentthe periphery of the gang of saws 25.

An impulse wheel 35 is fixed upon the reduced portion 20 of the shaft within the turbine housing l1 and a partition wall 38 is located between the impulse wheel and the rotary cutting unit above described, dividing the turbine from the mill, the central opening 31 in said partition wall forming the only communication between the two housings.

An inlet neck 88 communicates with the turbine housing for the purpose of admitting fluid under pressure from any suitable source, and an outlet pipe 88 leads from the opposite end of the mill housing [0 to any suitable storage receptacle.

In the operation of the improved blending ma-.

chine, oil, gasoline, or other liquid or viscous material is admitted under pressure through the inlet 88 driving the turbine and through it the directly connected rotary unit in the mill.

The liquid is given a preliminary mixing as it passes through the turbine and is then discharged through the central opening 31 into thebetween the turbine chamber and the interior of the main portion of the housing, and a liquid outlet at the other end of the housing.

2. A hydraulic blending machine comprising a horizontally disposed, substantially cylindric housing, a cap entirely enclosing one end of the housing and shaped to form a turbine chamber, a partition wall between the turbine chamber and the adjacent end of the housing, a cap entirely enclosing the other end 0! the housing, a concentric bearing socket in each cap, said sockets being open only to the interior of the housing, a shaft located longitudinally through the housing and journalled at its ends in said bearing sockets, a plurality of disc saws fixed upon the shaft in the main portion of the housing, a series of longitudinal partitions upon the interior of the. housing extending inwardly to points closely adjacent to the disc saws and dividing the housing into a plurality of attrition chambers, a turbine wheel fixed upon the shaft within the turbine chamber and comprising a plurality of radial vanes having their outer ends curved in the direction of rotation of the turbine wheel, a single, tangential liquid inlet communicating with the turbine chamber, there being a central opening in the partition wall of greater diameter than the shaft forming the only communication between the turbine chamber. andthe interior of the main portion of the housing, and a liquid outlet at the other end of mill forms a wholly enclosed structure having no shafts projecting through packing glands or the like, thus, preventing any dangerous leakage 'of inflammable material passing through the machine.

The liquid will be delivered to the inlet 88 by means of a pump or other pressure medium and by raising or lowering the pressure of the same the speed of the machine may be controlled.

1 claim:

1. A hydraulic blending machine comprising a horizontally disposed, substantially cylindric housing, a cap entirely enclosing one end of the housing and shaped to form a turbine chamber, a partition wall between the turbine chamber and the adjacent end of the housing, a cap entirely enclosing the other end of the housing, a concentric bearing socket in each cap, said sockets being open only to the interior of the housing, a shaft located longitudinally through the housing and journalled at its ends in said bearing sockets, a plurality of disc saws fixed upon the shaft in the main portion of the housing, a turbine wheel fixed upon the shaft within the turbine chamber and comprising a plurality of radial vanes having their outer ends curved in the direction of rotation of the turbine wheel, a single, tangential liquid inlet communicating with the turbine chamber, there being, a central opening in the partition wall of greater diameter than the shaft forming the only communication the housing.

3. A hydraulic blending machine comprising a horizontally disposed, substantially cylindric housing, a cap entirely enclosing one end of the housing and shaped to form a turbine chamber, a partition wall between the turbine chamber and the adjacent end of the housing, a cap entirely enclosing the other end of the housing, a concentric bearing socket in each cap, said sockets being 'open only to the interior of the housing, a shaft located longitudinally through the housing and journalled at its ends in said bearing sockets, a plurality of disc saws fixed upon the shaft .in the main portion of the housing, a series of longitudinal partitions and a'series of transverse partitions upon the interior of the housing extending to points closely adjacent to the disc saws and dividing the housing into a plurality of attrition chambers, a turbine wheel fixed upon the shaft within the turbine chamber and comprising a plurality of-radial' vanes having their outer ends curved in the direction of rotationof the turbine wheel, a single, tangential liquid inlet communicating with the turbine chamber, there being a central opening in the partition wall of greater diameter than the shaft forming the only communication between the turbine chamber and the interior of the main portion of the housing, and a liquid outlet at the other end of the housing.

ROBERT C. HOPKINS. 

